Window construction



July 5, 1938. c. M. VERHAGEN WINDOW CONSTRUCTION Filed April 29, 1936 2 Sheets-Sheet l fUZ/ci/ZW Vex/209672, KTMJA July 5, 19.38. c. M. VERH AGEN 2,122,656

WINDOW CONSTRUCTION Filed April 29, 1936 2 Sheets-Sheet 2 ifi/ l I I frzoe/z/o /w 911522072 fi/ Vaffzqgezz,

Patented July 5, 1938 PATENT OFFICE WINDOW CONSTRUCTION Christian M. VerhagenfElkhart, Ind., assignor .to The Adlake Company, Chicago, 111., a corporation of Illinois Application April 29, 1936, Serial No. 76,319

9 Claims.

The object of this invention is to provide an improved double glass window which is especially applicable to air-conditioned railway cars.

The window includes a fixed outer sash and a 5 movable inner sash. The innersash isnormally sealed about its periphery against the outer sash but can be easily separated therefrom for cleaning and as easily returned and secured in its sealed position by a simple movement of some novel locking strips. Ti.-se strips, which insure the application of just the right amount of pressure at all points to produce a good air-tight joint between the sash, constitute an important feature of the invention.

15 Other objects and advantages of the invention will be apparent to those skilled in the art upon a full understanding of the construction, arrangement and operation of the improved window.

Two forms of the invention are presented here- 20 in for the purpose of exemplification, but it will of course be appreciated that the invention is susceptible of embodiment in other structurally modified forms coming equally within the scope of the appended claims.

25 In the accompanying drawings:

Fig. 1 is an inside face view of a double glass window constructed in accordance with the invention;

Fig. 2 is a vertical section through the window, 30 taken on the line 22 of Fig. 1;

Fig. 3 is a horizontal section, taken on the line 3-3 of Fig. 1;

Fig. 4 is a perspective view of a portion of one of the side rails of the inner sash, showing the way in which that rail is detachably secured to the corresponding rail of the outer sash;

Fig. 5 is a horizontal section through the two rails, taken on the line 55 of Fig. 4;

Fig. 6 is a similar section, taken on the line 6-6 40 .of Fig. 4;

Fig. 7 is a similar section, taken on the line 1-1 of Fig. 4;

Fig. 8 is a side view of a tool suitable for use in shifting the locking strips; and Fig. 9 is a sectional view which corresponds to Fig. 5 but illustrates a modified form of the invention. y

In the window structure which is illustrated in Figs. 1 to 7 inclusive the outer metal sheathing 50 I! of the car is provided with a rectangular opening II at the location of the window. This opening is surrounded, on the inside of the car, with a metal frame l2 which is set back from the edge of the opening in order to leave a margin l3 of 55 the sheathing exposed. The window includes a fixed outer sash M which is. positioned against the margin l3 of the sheathing and a movable inner sash l5 which is positioned against the inner face of the outer sash. The rails l6 of the outer sash are provided with L-shaped flanges l1 coma 5 posed of portions [8 which extend inwardly from the edges of the rails and portions I 9 which project toward the frame I2 from the inner extremities of the portions i8. The portions I8 form a frame for the reception of the inner sash i5. 10 The portions l9 lap flanges 2| on angle strips 22 secured to the frame l2, and are fastened to the flanges 2| by means of screws 23. The outer faces of the rails I6 of the outer sash are provided with dovetailed grooves 24 in which packing strips 13 25 of soft rubber or other suitable material are seated. When the screws 23 are drawn up, the packing strips 25 are compressed between the rails l6 and the margin l3 of the sheathing about the opening, whereby to produce a tightly sealed 20 weatherproof joint between the outer sash and the sheathing.

The inner sash I5 is fastened at its upper edge to the upper part of the frame 20 on the outer sash I4 by means of a hinge 26 which extends 25 continuously the full width of the sash. This hinge permits the inner sash to be swung inwardly and upwardly away from the outer sash when the opposed surfaces of both sash require cleaning.

The outer faces of the rails 21 of the inner sash are grooved, like the outer faces of therails of the outer sash, and contain strips 28 of soft rubber or other suitable material which are compressed against the inner faces of the rails of the outer sash when the inner sash is swun down into its closed position. The side and bottom rails of the inner sash are provided with flanges 29 which slightly lap theflanges l9, and the side rails of the inner sash are provided at the bases of the flanges 29 with narrow slots 30 in which closely fitting flanges 3| on looking strips 32 are shiftably mounted.

The locking strips 32-which constitute the improved means for detachably clamping the inner sash against the outer sash on the interposed sealing strips 28 are characterized by flanges 33 which" are positioned flatly against the sides ofthe frame 20 on the outer sash. These flanges are secured to the edges of the side rails of the inner sash, in slightly spaced relation to the side rails, by two or more screws 34 in the side rails which have conical heads 35 which fit between the beveled edges of vertically elongated slots 36 in the flanges 33. The screws 34 limit the extent to which the locking strips 32 can be shifted upwardly or downwardly with respect to the side rails of the inner sash, and they also adjustably limit the extent to which the locking strips can v move away from the side rails. The locking strips 32' are forced away from the side rails of the inner sash as far as the heads 35 ofthe screws 34 will permit, by two or more leaf springs 31 which are secured to the flanges 33 of the locking strips by rivets 38 and bear resiliently against the side rails.

The flan es 33 of the locking strips are provided with two or more bayonet slots 39 which open toward the outer sash and coact with pins 40 which are mounted in the sides of the frame 20 on the outer sash and project toward the sides of the inner sash. The pins 40 are provided with enlarged button-like heads 4| which engage with the rear faces of the flanges 33 and prevent the latter fromworking away from the sides of the frame 20 after the locking connection has once u been established. The slots 39' have inclined edges 42 near their entrances and have siightly indented edges 43 at their ends, with the result that when the inner sash is closed down with the entrances of the slots in the strips in register with the pins, and the angle strips shifted downwardly, the inclined edges 42 of the slots will cam against the pins and draw the inner sash into its fully closed position, after which the indented edges 43 will register with the pins and seat the same enough to yieldingly resist any movement of the strips in the opposite direction. In this way both sides of the inner sash .will be drawn up uniformly into sealed association the outer sash.

In fastening or unfastening the inner sash IS the locking strips 32 are shifted in either direction by a tool 4t, on the order of the one shown in Fig. '8. The tool is inserted through a vertically elongated slot 45 in the flange 29 of the side raii 21, and through a relatively short slot 43 in the flange 3| of the locking strip to be moved, after which a notch 41 in the end of the tool is brought into engagement with a stud 48 on the frame 2|). The stud 48 projects toward the inner sash through a notch 49 in the flange 33 of the locking strip. When the tool is now swung upwardly or downwardly, the stud 48 will act as a fulcrum for the tool and one of the side Y edges 53 of the same will engage with the opposed end of the slot 46 in the locking strip and cause the latter to shift up or down, depending on whether the tool is being swung upwardly to un= fasten the inner sash'or swung downwardly to fasten the same.

In the modification which is shown in Fig. 9 the locking strip 5| is arranged with the flange 52 thereof in lapped associationwith the inner face 5-3 of the inner sash rather than within a groove provided in the edge of the inner sash as in the previously described embodiment. In all other respects the two constructions are substantially the same.

The locking strips have been described as applied to the two side edges of the inner sash which are disposed at right angles to the hinged edge, but it will of course be understood that an additional locking strip might also be applied to the edge opposite the hinged edge, or else a single locking strip applied to that edge alone, with good results. Furthermore, the hinged connection of the inner sash with the outer sash might be omitted and the inner sash merely hooked into position or detachably connected in any other manner with the outer sash. The locking strips, although preferably carried by the inner sash, could obviously be applied over the edges of the inner sash as separately removable elements, without being actually fastened thereto.

While the improved window structure is particularly suited to air-conditioned railway cars, it will of course be appreciated that it can be used to advantage in any place where a double glass window is desired.

I claim:

1. In a double glass window, a fixed sash, a

movable sash positioned against the fixed sash,

compressible packing strips located between the sash, and means for clamping the sash together on the packing strips comprising a locking device which is shiftably mounted on one sash and has a connection with the other sash which acts to wedge the sash toward each other when the device is shifted.

2. In a double glass window, a fixed sash, a movable sash positioned against the fixed sash. compressible packing strips located between the sash, and means for clamping the sash together on the packing strips comprising a locking device which is shiftably mounted oh one sash and has a connection with the other sash which acts to wedge the sash toward each other at a plurality of spaced points at the same time and to the same extent when the device is shifted.

3. In a double glass window, a fixed sash, a

movable sash positioned against the fixed sash, compressible packing strips located between the sash, and means for clamping the sash together on the packingstrips comprising a locking device which is shiftably mounted onone sash and has a bayonet pin-and-slot connection with the other sash.

4. In a double glass window, a fixed sash. a; movable sash positioned against the fixed sash, compressible packing strips located between the sash, and means for clamping the sash together on the packing strips comprising a locking strip which is shift-ably mounted on one sash and has a plurality of longitudinally spaced bayonet pinand-slot connections with the other sash.

5. In a double glass window, a fixed outer sash provided about its periphery with an inwardly projecting frame, a movable inner sash positioned against the outer sash within the frame, cempressible packing strips located between the sash, and means for clamping the sash together on the packing strips comprising a locking strip which is shiftably mounted on the inner sash and has a plurality of longitudinally spaced bayonet pinand-slot connections with the frame projecting from the outer sash.

6. In a double glass window, a fixed outer sash provided about its periphery with an inwardly projecting frame, an inner sash hinged at oneedge to the frame and positioned against the outer sash within the frame, compressible packing strips located between the sash, and means for clamping the sash together on the packing strips comprising locking strips which are shiftably mounted on the edges of the inner sash at right angles to the hinged edge and which are provided with a plurality of longitudinally spaced bayonet pin-and-slot connections with the frame projecting fromltheeouter sash.

'7. In a double glass window, a fixed outer sash provided about its periphery with an inwardly projecting frame, an inner sash hinged at one edge to the frame and positioned against the outer sash within the frame,'compressible packing strips located between the sash, and means for amaeee clamping the sash together on the packing strips comprising locking strips which are shiftably mounted on the edges of the inner sash at right angles to the hinged edge and which are provided-with a plurality of longitudinally spaced bayonet pin-and-slot connections with the frame projecting from the outer sash, each of said locking strips being of L-shaped cross section with one of the flanges thereof positioned in a slot in the edge of the inner sash and with the other flange positioned against the side of the frame. r

8. In a double glass window, two sash which are positioned against each other, compressible packing strips located between the sash, and means for clamping the sash together on the packing strips comprising a locking strip which is associated with corresponding edges of the sash and is shiftable longitudinally thereof and provides a connection therebetween which acts to wedge the sash toward each other at a plurality of spaced points at the same time and to'the same extent when the locking strip is shifted.

9. In a double glass window,a fixed sash, a movable sash positioned against the fixed sash, compressible packing strips located between the sash, and means for clamping the sash together on the packing strips comprising a shiftably mounted locking strip, said locking strip having a flange parallel to the plane of the inner sash which laps against a portion of the inner sash and a second flange at right angles to the first flange which fits against a portion of the outer sash and is provided with a plurality of L -shaped slots, a pinrality of pins carried by the outer sash for camming coaction with the L-shaped slots, and means for shifting the locking strip in either direction, consisting of a fulcruming stud mounted on one of the sash, and opposed shoulders on the locking strip for engagement with one side or the 

